Hi,
There is a possibility to set zero price for product in the current release of ViArt Shop.
To run order with zero total amount through Checkout please use Personal payment system.
You can set it up so it won't have any field requesting for payment information, just a note from Payment Information (shown for users) setting.
WBR,
ViArt Support Team
How can I set up the Viart shopping cart in order to let customers or visitors have free downloadable products? I mean a file they can download for free.
I tried with the price set to zero but it didn't work.